MAX PRO 3+ is out!

[pcs]

MAX PRO 3+ design has been finished finally just minutes ago.

Shipping starts this week.

Some notable features:
-PLL step down to 6.25KHz minimum (50KHz/25KHz/12.5KHz or 6.25KHz)
-Each unit can be used either without LCD (with on-board DIP switch) or a LCD unit can be attached.
-Improved heatsink
-Power can be set in 3 ways, which are selectable via jumper; via LCD, potentiometer or a trimmer
-Improved SWR protection with adjustable sensitivity
-Improved PLL lock down
-Many small fixes

Stay tuned for photos and other info!

[pcs]

Here is the pic:



-Note that PLL step is now 6.25KHz. Reference oscillator can be swinged a bit with the trimmer so any frequency can be covered. For those who are new to transmitters, you can set your frequency in steps of 100KHz, 50KHz, 25KHz, 12.5KHz or 6.25KHz.
-The DIP switches can be used to set the frequency without the LCD module. If you want to use LCD, simply set all DIP switches to off and attach LCD module. This is desirable sometimes and makes installing into a case much simpler.
-SWR protection is now a lot more sensitive. Sensitivity can se adjusted with a trimmer.
-TEMP protection can be adjusted as well. "Dead spots" at the extremes have been removed.
-Power can be set either with potentiometer, trimmer or LCD. Selectable with 3-position jumper to your
preference.
-Protection LED now illuminates fully regardless of current power setting, before it did not when power was set close to zero
-Improved output heatsink
-Improved layout, there are now no custom corrections on board
-Place for additional extension connector, not used at the moment, but provides connections for both LED diodes, ground and power. This will be usefull for system integrators, makes things look more professional.

Overall, the best FM exciter we developed to date. Satisfaction guaranteed.

[pcs]

Manual was just uploaded, the link is now fully operational.

[stylzmovement]

can you give me the size of the pc board vs the size of the max pro 4 , i have already built my enclousures for that unit.

i will like to know if it can fir the same space?

can i use the this unit as a stand alone with the lcd controller?

[pcs]

The baord is bigger, the holes do not match. Only the holes for heatsink
match.

You can use it as stand-alone, sure.

Marko

[Gregtheham]

How does this compare to the PROMAX 2015 V3 ?
It seems similar at first impressiom.
Your websote also seems to have been updated and the FM transmitter KIts have been changed. Looks like you have deleted/ redesigned some old favorites such as the ProMax 2015 V3.

Which woukd be a similar replacemnt model.now?
Looking for a Clean outpit for inner city use. We do NOT require stereo /MPX nor RDS for station info.

The ProMax 2015 V3 worked very well for 2 years. ( now no output..want to have repaired if worth it)
Z
Our Bare Bones Promax 2015 v3 runing 15w into a homebrew vetical J-pole was very clean. NEARBY stations on the radio dial coukd be heard , even when close to the xmit location. We compare that to a Chinese 15 watt unit that sawomp out most other FM statoons within about 5 houses aroubd the xmiter location. Receiver Front End Overload is a problem with poor designs and leads to complaints. We had NO problem with the ProMax 2015 v3 and sad that it stopped workiing ( see our other post to this,group)

Please advise as to similar affordable replacement in the new model line up. Costs are much increased to our country due to poor exchamge rate with US, shipping and duty costs etc.

Thanks
Greg